2001 INFINITI QX4 remote control

DescriptionNBEL0124The following systems are controlled by the smart entrance control unit.
IWarning chime
IRear window defogger and door mirror defogger timer
IPower door lock
IMulti-remote control system
ITheft warning system
IInterior lamp timer
IElectric sunroof and power window timer
IHeadlamp battery saver
IBattery saver
For detailed description and wiring diagrams, refer to the relevant pages for the each system.
The smart entrance control unit receives data from the switches and sensors to control their corresponding
system relays and actuators.
INPUT/OUTPUTNBEL0124S01
System Input Output
Power door lockDoor lock and unlock switch LH and RH
Key switch (Insert)
Door switches
Door key cylinder switchesDoor lock actuator
Multi-remote controlKey switch (Insert)
Ignition switch (ACC)
Door switches
Front door unlock sensor LH
Door lock and unlock switch LH
Remote controller signalHorn relay
Headlamp relay (LH and RH)
Interior lamp
Multi-remote control relay
Door lock actuator
Warning chimeKey switch (Insert)
Ignition switch (ON)
Lighting switch (1st)
Seat belt switch
Front door switch LHWarning chime (located in smart entrance
control unit)
Rear window defogger and
door mirror defogger timerIgnition switch (ON)
Rear window defogger switchRear window defogger relay
Theft warningIgnition switch (ACC, ON)
Door switches
Hood switch
Glass hatch switch
Door key cylinder switches (lock/unlock)
Door unlock sensoresHorn relay
Headlamp relay (LH and RH)
Security indicator
Interior lamp timerDoor switches
Front door unlock sensor LH
Ignition switch (ON)
Key switch (Insert)Interior lamp
Electric sunroof and power
window timerFront door switches
Ignition switch (ON)Power window relay
Headlamp battery saver timerFront door switches
Ignition switch (ON)Headlamp battery saver control unit
Battery saverIgnition switch (ON)
Door switches
Driver's door unlock sensor
Key switch (Insert)Interior lamp
Luggage room lamp
Spot lamp
Vanity mirror illumination lamp
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SMART ENTRANCE CONTROL UNIT
Description
EL-319

Smart Entrance Control Unit Inspection TableNBEL0126
Terminal
No.Wire
colorConnections Operated conditionVoltage
(Approximate
values)
2 G/B Rear window defogger relay OFF,ON (Ignition key is in ªONº position) 0V,12V
4 PU/W Theft warning horn/lamp relay When panic alarm is operated using remote controller 12V,0V
5 R/YHeadlamp battery saver control
unitWhen headlamp battery saver timer is operated 12V
7 P Multi-remote control relay When doors are locked using remote controller 12V,0V
8 R/B Interior lampWhen interior lamp is operated using remote controller.
(Lamp switch in ªDOORº position)0V,12V
10 G/R Power source (Fuse) Ð 12V
11 W/R Power source (C/B) Ð 12V
13 W/PU Driver door lock actuator
Door lock & unlock switchFree 0V
14 Y/B Passenger door lock actuator Unlocked 12V
15 L Door lock actuators Door lock & unlock switchFree 0V
Locked 12V
16 B Ground Ð Ð
17 R/W Battery saver (Interior lamp) Battery saver is not operate,Operate 12V,0V
19 LG/B Horn relayWhen doors are locked using remote controller with horn
chirp mode.12V,0V
21 G/W Ignition switch (ACC) ªACCº position 12V
22 B/P Seat belt buckle switch Unfasten,Fasten (Ignition key is in ªONº position) 0V,12V
23 BR Door lock & unlock switches Neutral,Locks 5V,0V
26 Y/R Rear door unlock sensors All doors are locked,One or more doors are unlocked 5V,0V
27 Y/B Hood open signal ON (Open),OFF (Closed) 0V,5V
28 R/L Rear and back door switches OFF (Closed),ON (Open) 5V,0V
29 G/R Driver door switch OFF (Closed),ON (Open) 5V,0V
30 LG Door key cylinder unlock switch OFF (Neutral),ON (Unlocked) 12V,0V
31 BR/Y Theft warning indicator Goes off,Illuminates 12V,0V
32 W/R Ignition key switch (Insert) key inserted,key removed from IGN key cylinder 12V,0V
33 W/B Ignition switch (ON) Ignition key is in ªONº position 12V
35 LG/R Door lock & unlock switches Neutral,Unlocks 5V,0V
36 Y/G Driver door unlock sensor Driver door: Locked,Unlocked 5V,0V
37 Y/L Passenger door unlock sensor Passenger door: Locked,Unlocked 5V,0V
38 L/W Glass hatch switch ON (Open),OFF (Closed) 0V,12V
39 OR Rear window defogger switch OFF,ON 5V,0V
40 Y Passenger door switch OFF (Closed),ON (Open) 5V,0V
41 Y Door key cylinder lock switch OFF (Neutral),ON (Locked) 5V,0V
42 G/B Back door key unlock switch OFF (Neutral),ON (Unlock) 5V,0V
SMART ENTRANCE CONTROL UNIT
Smart Entrance Control Unit Inspection Table
EL-324

System DescriptionNBEL0180OUTLINENBEL0180S01INFINITI Communicator system uses the Global Positioning Sys-
tem (GPS), cellular phone technology and the Communicator
Response Center to provide the following functions.
IOne touch ªInformationº dialing
IOne touch ªMaydayº emergency dialing
IAutomatic air bag inflation notification
IStolen vehicle tracking
IAlarm notification
IRemote door unlock
There are limitations to the INFINITI Communicator system. To
understand the system, read SYSTEM LIMITATIONS (EL-351)
thoroughly.
SYSTEM COMPOSITIONNBEL0180S02IThe INFINITI Communicator system is controlled by the IVCS
(In Vehicle Communication System) unit. System status (ªMay-
dayº-emergency dialing, or re-dialing, etc.) is displayed by the
indicators in the IVCS switch.
IThe INFINITI Communicator system can only make calls to the
Communicator Response Center and receive calls from the
center, unless the customer chooses to have the optional
handset install.
SEL099W
INFINITI COMMUNICATOR (IVCS)
System Description
EL-350

IThe vehicle location data is calculated using GPS.
IThe vehicle ignition switch must be turned to the ON position
to obtain the vehicle location. (This is because the system is
in the sleep mode when the ignition switch is OFF.)
IOnce this function starts up, regardless of the ignition switch
position, the system keeps transmitting the vehicle location
until the cancel signal is transmitted from the Communicator
Response Center.
IWhile this function is operating, the operator can covertly moni-
tor what is happening inside the vehicle through the hands-free
microphone.
Alarm NotificationNBEL0180S0405IWhen theft warning system sounds an alarm for more than 7
seconds because of improper access, the alarm signal is
transmitted from the smart entrance control unit to the IVCS
unit, and the system executes automatic dialing to the Com-
municator Response Center.
If the alarm is reset before 7 seconds has elapsed, the
INFINITI Communicator will not place a call to the Communi-
cator Response Center.
IThis function operates regardless of ignition switch position.
IWhile this function is operating, the operator can covertly moni-
tor what is happening inside the vehicle through the hands-free
microphone.
Remote Door UnlockNBEL0180S0406IWhen the door is locked with the key inside the vehicle, the
door can be unlocked by contacting the Communicator
Response Center. (Proof that the person calling is the owner
must be received by the Communicator Response Center.)
IWhen the ignition key is in the ªOFFº position, the system is in
the sleep mode. Therefore, back door outside handle must be
pulled to wake up the system.
ITo perform remote door unlock, call the Communicator
Response Center and follow the operator's instructions.
NOTE:
IWhen the system contacts the Communicator Response
Center, data including the vehicle location is transmitted
to the Communicator Response Center.
ICommunication with the Communicator Response Center
is not completed until the completion signal is transmitted
from the Communicator Response Center. (Any calls to
the Communicator Response Center can only be termi-
nated by Communicator Response Center.)
IFunctions other than alarm notification and remote door
unlock operate while the ignition switch is ON and only for
three minutes after the switch is turned OFF.
IOnce a call to the Communicator Response Center is
made, the communication continues regardless of the
ignition key switch position.
IAll the voice communication with the Communicator
Response Center is made through the hands-free tele-
phone.
IWhen the INFINITI Communicator system is activated, the
handset does not function.
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INFINITI COMMUNICATOR (IVCS)
System Description (Cont'd)
EL-353

APPLICATION ITEMSNBEL0183S02
Mode DescriptionReference
page
SELF DIAG RESULTS Displays the result of self-diagnosis. EL-364
DATA MONITORTwo modes, ªGPS MONITORº and ªSWITCH MONITORº can be selected in this
mode.
IDisplays current data related to GPS in ªGPS MONITORº mode.
IDisplays IVCS switch and outside door handle switch condition in ªSWITCH
MONITORº mode.EL-366
FUNCTION CHECKIn this mode, ªRemote door unlock functionº can be checked using CONSULT-II.
Door can be unlocked according to the commands to the smart entrance control
unit by the IVCS unit. This check verifies communication circuit between smart
entrance control unit and IVCS unit.EL-374
REGISTERED DATADisplays the following data registered in the IVCS unit. In this mode the data can-
not be re-written.
IUnit ID
ICellular phone number
IVIN (Vehicle Identification Number)EL-367
CONFIGURATION
(See Note.)In this mode, the system can be set up in the demonstration mode to confirm sys-
tem operation.EL-379
Various data related to both the Communicator Response Center contract and cel-
lular provider can be written/updated in this mode.
IPhone number
INAM (Number Assignment Module)
IStolen vehicle tracking setting (Default should always be on.)
IAlarm notification setting (Default should always be on.)EL-381
ECU PART NUMBER Displays the part number of the IVCS unit. Ð
NOTE:
Data must not be rewritten without prior approval from the
customer.
SEL440W
ªSELF-DIAG RESULTSº MODENBEL0183S03How to Perform Self-diagnosisNBEL0183S03011. Touch ªSELF-DIAG RESULTSº.
2. Touch ªSTARTº.
SEL441W
3. If no malfunction is detected, CONSULT-II will show ªNO DTCº.
INFINITI COMMUNICATOR (IVCS)
CONSULT-II (Cont'd)
EL-364

BACK DOOR HANDLE SWITCH CHECK=NBEL0184S08
1 CHECK BACK DOOR HANDLE SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Select ªSWITCH MONITORº in ªDATA MONITORº mode.
3. Check the switch operation.
Condition:
When back door handle switch is pushed:
DR HANDLE ON
When back door handle switch is released:
DR HANDLE OFF
NOTE:
When CONSULT-II ªDATA MONITORº mode is operating, INFINITI Communicator does not dial to Communicator
Response Center when the switches are operated.
OK or NG
OK©Back door handle switch is OK.
NG©GO TO 2.
2 CHECK BACK DOOR HANDLE SWITCH
1. Disconnect back door handle switch connector.
2. Check continuity between back door handle switch terminals 1 and 2.
SEL375X
OK or NG
OK©Check the following.
IBack door handle switch ground circuit
IHarness for open or short between back door handle switch and IVCS unit
NG©Replace back door handle switch.
REMOTE DOOR UNLOCK FUNCTION CHECK
(CONSULT-II ªFUNCTION CHECKº MODE)
NBEL0184S09DescriptionNBEL0184S0901ªRemote door unlock functionº can be checked using CONSULT-
II. Driver side door can be unlocked according to the commands to
the smart entrance control unit by the IVCS unit.
NOTE:
Before performing the function check, confirm that power door lock
system operates properly.
INFINITI COMMUNICATOR (IVCS)
Trouble Diagnoses (Cont'd)
EL-374

NBEL0145
Use the chart below to find out what each wiring
diagram code stands for.
Refer to the wiring diagram code in the alphabetical
index to find the location (page number) of each
wiring diagram.
Code Section Wiring Diagram Name
1STSIG AT A/T 1ST Signal
2NDSIG AT A/T 2ND Signal
3RDSIG AT A/T 3RD Signal
4THSIG AT A/T 4TH Signal
A/C, A HA Auto Air Conditioner
AAC/V EC IACV-AAC Valve
ABS BR Anti-lock Brake System
AP/SEN EC Absolute Pressure Sensor
ASCD EL Automatic Speed Control Device
AT/C EC A/T Control
ATDIAG EC A/T Diagnosis Communication
Line
AT/IND EL A/T Indicator Lamp
AUDIO EL Audio
AUT/DP EL Automatic Drive Positioner
BA/FTS AT A/T Fluid Temperature Sensor
and TCM Power Supply
BACK/L EL Back-up Lamp
BYPS/V EC Vacuum Cut Valve Bypass Valve
CHARGE SC Charging System
CHIME EL Warning Chime
CIGAR EL Cigarette Lighter
CLOCK EL Clock
COMPAS EL Compass and Thermometer
D/LOCK EL Power Door Lock
DEF EL Rear Window Defogger
DTRL EL Headlamp Ð With Daytime Light
System Ð
ECTS EC Engine Coolant Temperature Sen-
sor
ENGSS AT Engine Speed Signal
F/FOG EL Front Fog Lamp
F/LID EL Fuel Lid Opener
F/PUMP EC Fuel Pump Control
FICD EC IACV-FICD Solenoid Valve
FLS1 EC Fuel Gauge
Code Section Wiring Diagram Name
FLS2 EC Fuel Gauge
FLS3 EC Fuel Gauge
FTS AT A/T Fluid Temperature Sensor
FUELLH EC Fuel Injection System Function
(Left Bank)
FUELRH EC Fuel Injection System Function
(Right Bank)
H/AIM EL Headlamp Aiming Control System
H/LAMP EL Headlamp
HORN EL Horn
HSEAT EL Heated Seat
IATS EC Intake Air Temperature Sensor
IGN/SG EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
INT/L EL Interior, Spot, Vanity Mirror, and
Luggage Room Lamps
IVC-L EC Intake Valve Timing Control Sole-
noid Valve LH
IVC-R EC Intake Valve Timing Control Sole-
noid Valve RH
IVCS EL INFINITI Communicator
IVCS-L EC Intake Valve Timing Control Posi-
tion Sensor LH
IVCS-R EC Intake Valve Timing Control Posi-
tion Sensor RH
KS EC Knock Sensor
LAN AT A/T Communication Line
LOAD EC Electrical Load Signal
LPSV AT Line Pressure Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN AT Main Power Supply and Ground
Circuit
MAIN EC Main Power Supply and Ground
Circuit
METER EL Speedometer, Tachometer, Temp.,
Oil, and Fuel Gauges
MIL/DL EC MIL and Data Link Connectors
MIRROR EL Door Mirror
MULTI EL Multi-remote Control System
NATS EL IVIS (Infiniti Vehicle Immobiliser
System)
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WIRING DIAGRAM CODES (CELL CODES)
EL-457

Code Section Wiring Diagram Name
NAVI EL Navigation System
NONDTC AT Non-detectable Items
O2H1B1 EC Heated Oxygen Sensor 1 Heater
(Front) (Bank 1)
O2H1B2 EC Heated Oxygen Sensor 1 Heater
(Front) (Bank 2)
O2H2B1 EC Heated Oxygen Sensor 2 Heater
(Rear) (Bank 1)
O2H2B2 EC Heated Oxygen Sensor 2 Heater
(Rear) (Bank 2)
O2S1B1 EC Heated Oxygen Sensor 1 (Front)
(Bank 1)
O2S1B2 EC Heated Oxygen Sensor 1 (Front)
(Bank 2)
O2S2B1 EC Heated Oxygen Sensor 2 (Rear)
(Bank 1)
O2S2B2 EC Heated Oxygen Sensor 2 (Rear)
(Bank 2)
OVRCSV AT Overrun Clutch Solenoid Valve
P/ANT EL Power Antenna
PGC/V EC EVAP Canister Purge Volume
Control Solenoid Valve
PHASE EC Camshaft Position Sensor
(PHASE)
PNP/SW EC Park/Neutral Position Switch
PNP/SW AT Park/Neutral Position Switch
POS EC Crankshaft Position Sensor
(CKPS) (POS)
POWER EL Power Supply Routing
PRE/SE EC EVAP Control System Pressure
Sensor
PST/SW EC Power Steering Oil Pressure
Switch
REF EC Crankshaft Position Sensor
(CKPS) (REF)
REMOTE EL Audio (Remote Control Switch)
RP/SEN EC Refrigerant Pressure
S/SIG EC Start Signal
S/VCSW EC Swirl Control Valve Control
Vacuum Check Switch
SEAT EL Power Seat
SHIFT AT A/T Shift Lock System
SROOF EL Sunroof
SRS RS Supplemental Restraint SystemCode Section Wiring Diagram Name
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
STOP/L EL Stop lamp
SWL/V EC Swirl Control Valve Control Sole-
noid Valve
TAIL/L EL Parking, License and Tail Lamps
TCCSIG AT A/T TCC Signal (Lock up)
TCV AT Torque Converter Clutch Solenoid
Valve
T/F TF Transfer
TFTS EC Tank Fuel Temperature Sensor
THEFT EL Theft Warning System
TLID EL Glass Hatch Opener
TP/SW EC Throttle Position Switch
TPS AT Throttle Position Sensor
TPS EC Throttle Position Sensor
TRNSMT EL Integrated HOMELINKYTrans-
mitter
TRSA/T AT Turbine Revolution Sensor
TURN EL Turn Signal and Hazard Warning
Lamps
VIAS/V EC Variable Induction Air Control Sys-
tem
VSS EC Vehicle Speed Sensor
VSSA/T AT Vehicle Speed Sensor A/T (Revo-
lution Sensor)
VSSMTR AT Vehicle Speed Sensor MTR
WARN EL Warning Lamps
WINDOW EL Power Window
WIP/R EL Rear Wiper and Washer
WIPER EL Front Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
EL-458